Home / 128,090.04-192,155.72-48,134.24

Finding the Fourth Proportional to 128,090.04, 192,155.72 and 48,134.24

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Solution

The fourth proportional to 128,090.04, 192,155.72 and 48,134.24 is: 72,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,090.04 : 192,155.72 = 48,134.24 : x
  2. Step 2: Convert to fraction form
    128,090.04/192,155.72 = 48,134.24/x
  3. Step 3: Cross multiply
    128,090.04x = 192,155.72 × 48,134.24
  4. Step 4: Simplify right side
    128,090.04x = 9,249,268,342.40
  5. Step 5: Solve for x
    x = 9,249,268,342.40/128,090.04
  6. Step 6: Final answer
    x = 72,209.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.